Improvement in derricks



T. JONES.

.W. SEFTDN &. l.

D'arricks.

Patented Feb. 3,1874.

No.l47,180.

If?! a Aral; W/jzaa I UNITED STATES PATENT GFFICE.

JAMES SEFTON AND JAMES T. JONES, OF XENIA, ILLINOIS.

IMPROVEMENT IN DERRICKS.

Specification forming part of Letters Patent No. 147,1 80. datedFebruary 3, 1874; application filed September 6, 1873.

To all whom it may concern:

Be it known that we, JAMES W. SEFTON and J AMEs T. JONES, of Xenia, inthe county of Clay and State of Illinois, have invented a new andvaluable Improvement in Hay-Stackers and we do hereby declare that thefollowing is a full, clear, and exact description of the constructionand operation of the same, reference being had to the annexed drawingsmaking a part of this specification, and to the letters and figures ofreference marked thereon.

Figure l of the drawings is a representation of my hay-stacker partlysectioned. Fig. 2 is a top view of same. Fig. 3 is a section of theshaft.

This invention relates to improvements on machines for stacking hay inthe field. It consists in a means iorlocking the revolving beam in agiven position when this is required.

I11 the accompanying drawings, Arepresents a portable sled, which iscomposed of longitudinal runners to a connected by transverse beamsproperlyframed into therunners. There may be any number of thesetransversebeams, but we prefer to have three, two at the front and rearends and one in the middle, as shown in the drawings. From the middlebeam 1) rises perpendicularly a post, B, which is sustained in itsposition by means of inclined braces c 0 0 c. This post supports arevolving beam or crane, 0, upon its upper end, which is strengthened bymeans of braces e e. The beam is inclined somewhat from a horizontalplane, and it is supported upon the upper end tube has two standardsrising from it, which are firmly bolted to the sides of the crane andextend above the same far enough to afford bearings for a groovedpulley, j. Between the crane G and the upper end of the tube It a block,d, is confined, which makes a solid connection. The lower bearing isformed by plates g, the ears of which are secured to the lowerextremities of the braces e 6, thus making a collar, which is supportedupon a shoulder, g*. The crane G is thus firmly sustained and allowed toturn around the post B. To fix the crane at anytime a spring-pawl,

' s, is applied to the post B below the collar g,

and, when desired, tlns pawl is caused to engage with a notch made inthe lower edge of the collar. The pawl 8 may be worked by means of acord, 8, shown in Fi 1. The elevating-rope n is carried over a pulley,m, which has its hearings in a staple, 12 on the highest end of thecrane, thence over the pulley j to and over a pulley, m, which has itsbearings in a staple, p, 011 the sled-frame A. From the pulley m therope a is carried off horizontally, and may be hitched to a horse forraising the loads.

WVhat we claim as new, and desire to secure by Letters Patent, is-

The spring-pawl s, in combination with the post B and collar g,substantially as and for the purpose mentioned.

In testimony that we claim the above we have hereunto subscribed ournames in the presence of two witnesses.

JAMES WV. SEFTON. JAMES T. JONES. Witnesses H. H. Bnnonnn, JOHN S.SYMONDS.

